Microstructure and texture evolution during annealing of equiatomic CoCrFeMnNi high-entropy alloy

被引:433
作者
Bhattacharjee, P. P. [1 ]
Sathiaraj, G. D. [1 ]
Zaid, M. [1 ]
Gatti, J. R. [1 ]
Lee, Chi [2 ]
Tsai, Che-Wei [2 ]
Yeh, Jien-Wei [2 ]
机构
[1] Indian Inst Technol Hyderabad, Dept Mat Sci & Engn, Yeddumailaram 502205, AP, India
[2] Natl Tsinghua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan
关键词
High-entropy alloys; Cold rolling; Annealing; Microstructure; Texture; DEFORMATION;
D O I
10.1016/j.jallcom.2013.10.237
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Evolution of microstructure and texture after heavy cold rolling and subsequent annealing in a wide temperature range was first studied in an FCC equiatomic CoCrFeMnNi high-entropy alloy (HEA). Development of a submicron-cell structure and a strong brass-type texture was observed after 90% cold rolling. An ultrafine microstructure having average recrystallized grain size similar to 1 mu m with profuse annealing twins was observed after annealing at 650 degrees C. Remarkable resistance against grain coarsening was observed at least up to 800 degrees C. The mechanisms for these features were closely related with the distinct whole-solute matrix in HEAs. The recrystallization texture was characterized by the retention of deformation texture components similar to those of TWIP and 316 stainless steels. But notable differences exist. The S ({123}< 634 >) component is stronger than brass ({110}< 112 >) and Goss ({110}< 001 >), and strengthened with increasing annealing temperatures. Strong alpha-fiber (< 110 >//ND) components other than the deformation components B-S and G, and higher fraction of random components also develop. It could be attributed to profuse annealing twin formation due to the low stacking fault energy of the alloy. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:544 / 552
页数:9
相关论文
共 33 条
[1]  
[Anonymous], 2012, MAT SCI ENG A
[2]   Experimental Determination and Simulation of Annealing Textures in Cold Rolled TWIP and TRIP Steels [J].
Barrales-Mora, L. A. ;
Lue, Y. ;
Molodov, D. A. .
STEEL RESEARCH INTERNATIONAL, 2011, 82 (02) :119-126
[3]   Microstructure and texture evolution during cold rolling and annealing of a high Mn TWIP steel [J].
Bracke, L. ;
Verbeken, K. ;
Kestens, L. ;
Penning, J. .
ACTA MATERIALIA, 2009, 57 (05) :1512-1524
[4]   Texture generation and implications in TWIP steels [J].
Bracke, Lieven ;
Verbeken, Kim ;
Kestens, Leo A. I. .
SCRIPTA MATERIALIA, 2012, 66 (12) :1007-1011
[5]   Structural evolution during mechanical milling and subsequent annealing of Cu-Ni-Al-Co-Cr-Fe-Ti alloys [J].
Chen, Yu-Liang ;
Hu, Ya-Huei ;
Tsai, Che-Wei ;
Yeh, Jien-Wei ;
Chen, Swe-Kai ;
Chang, Shou-Yi .
MATERIALS CHEMISTRY AND PHYSICS, 2009, 118 (2-3) :354-361
[6]   Randomization of texture during recrystallization of austenite in a cold rolled metastable austenitic stainless steel [J].
Chowdhury, Sandip Ghosh ;
Datta, Sudarsan ;
Kumar, B. Ravi ;
De, P. K. ;
Ghosh, R. N. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 443 (1-2) :114-119
[7]   OVERVIEW .82. DEVELOPMENT OF TEXTURE AND MICROSTRUCTURE DURING COLD-ROLLING AND ANNEALING OF FCC ALLOYS - EXAMPLE OF AN AUSTENITIC STAINLESS-STEEL [J].
DONADILLE, C ;
VALLE, R ;
DERVIN, P ;
PENELLE, R .
ACTA METALLURGICA, 1989, 37 (06) :1547-1571
[8]   FORMATION OF ANNEALING TWINS DURING GRAIN GROWTH [J].
FULLMAN, RL ;
FISHER, JC .
JOURNAL OF APPLIED PHYSICS, 1951, 22 (11) :1350-1355
[9]   Texture evolution of a cold-rolled Fe-28Mn-0.28C TWIP steel during recrystallization [J].
Haase, Christian ;
Barrales-Mora, Luis A. ;
Molodov, Dmitri A. ;
Gottstein, Guenter .
RECRYSTALLIZATION AND GRAIN GROWTH V, 2013, 753 :213-216
[10]   Inhibition of grain coarsening up to 1000 °C in (AlCrNbSiTiV)N superhard coatings [J].
Huang, Ping-Kang ;
Yeh, Jien-Wei .
SCRIPTA MATERIALIA, 2010, 62 (02) :105-108